| Player History |
| 06-15-1980 | Drafted in the 1980 first-year player draft (Round 1, Pick 2, 2nd overall Pick) by the California Angels. |
| 07-08-1980 | Injured (finger blister), day-to-day for 3 days. |
| 07-22-1980 | Injured (strained back muscle), day-to-day for one week. |
| 01-01-1981 | SISA scouting updated ratings (potential): Contact: 4 (8); Power: 2 (6); Eye: 2 (4). |
| 07-24-1981 | Injured (fractured hand), out for 4 days. |
| 08-03-1981 | Hits for the CYCLE, going 5-5 against the Palmdale Satellites, with 2 RBI and 3 runs scored. |
| 08-03-1981 | Goes 5-5 against the Palmdale Satellites, with 2 2B, 1 3B, 1 HR, 2 RBI and 3 R. |
| 08-10-1981 | Wins the MLBAA SL1 Player of the Week Award. |
| 01-01-1982 | SISA scouting updated ratings (potential): Contact: 7 (9); Power: 2 (6); Eye: 4 (5). |
| 06-07-1982 | Injured (finger blister), day-to-day for 4 days. |
| 11-09-1982 | Wins the 1982 MLB AL Gold Glove at SS. |
| 11-22-1982 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1983 | SISA scouting updated ratings (potential): Contact: 8 (8); Power: 3 (6); Eye: 4 (4). |
| 11-23-1983 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1984 | SISA scouting updated ratings (potential): Contact: 7 (7); Power: 4 (5); Eye: 5 (5). |
| 04-14-1984 | Goes 5-6 against the Chicago (A) White Sox, with 1 HR, 4 RBI and 2 R. |
| 04-16-1984 | Wins the MLB AL Player of the Week Award. |
| 06-29-1984 | Was selected to the 1984 Major League Baseball All-Star Game. |
| 11-18-1984 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1985 | SISA scouting updated ratings (potential): Contact: 7 (7); Power: 4 (5); Eye: 6 (6). |
| 06-11-1985 | Injured (pinched nerve (neck)), out for 4 weeks. |
| 10-25-1985 | Won the 1985 Major League Baseball World Series with the California Angels! |
| 11-15-1985 | Received a 1-year contract worth a total of $5,627,600 through arbitration. |
| 01-01-1986 | SISA scouting updated ratings (potential): Contact: 7 (7); Power: 5 (5); Eye: 7 (7). |
| 07-31-1986 | Was traded by the California Angels to the Minnesota Twins, along with SP D. Drabek, in exchange for SS T. Fernandez, 3B M. Williams, SP D. Buice. |
| 09-03-1986 | Signed a 5-year contract extension worth a total of $43,500,000 with the Minnesota Twins organization. |
| 01-01-1987 | SISA scouting updated ratings (potential): Contact: 7 (7); Power: 6 (6); Eye: 5 (5). |
| 03-20-1987 | Injured (bruised wrist), day-to-day for 4 days. |
| 06-22-1987 | Wins the MLB AL Player of the Week Award. |
| 07-06-1987 | Wins the MLB AL Player of the Week Award. |
| 09-17-1987 | Injured (torn rib cage muscle), out for 7-8 months. |
| 01-01-1988 | OSA scouting updated ratings (potential): Contact: 5 (5); Power: 5 (5); Eye: 5 (5). |
| 01-01-1989 | OSA scouting updated ratings (potential): Contact: 6 (6); Power: 4 (4); Eye: 5 (5). |